Results 51 to 60 of about 916,905 (189)
Wide-bandgap power devices, particularly silicon carbide (SiC) MOSFETs, have seen widespread adoption in electric vehicle (EV) motor drive systems due to their superior switching characteristics, including high switching speeds and high switching ...
Yipu Xu +4 more
doaj +1 more source
Relevance. One of the main causes of high accident rate and outages in distributed power supply systems of 6–10 kV oil fields are overvoltages due to lightning effects.
Sergey V. Sidorov +2 more
doaj +1 more source
Towards Power Import and Regional Grid Interconnection: A Singapore‐Centric Energy Internet
ABSTRACT Singapore is accelerating its energy transition by pursuing large‐scale cross‐border renewable power import and regional grid interconnection. Targeting up to 6 GW of low‐carbon power import by 2035—equivalent to nearly half of its projected electricity demand—Singapore is poised to transform from a gas‐dominated urban power system into a ...
Yan Xu
wiley +1 more source
Review of Catenary Icing on High‐Speed Railways: Characteristics, Impact and Countermeasures
ABSTRACT The pantograph–catenary system (PCS) is the only path for electrified railway trains to acquire energy. Catenary icing during winter is a common natural phenomenon, which usually leads to the deterioration of the current quality and severely affects the operational safety of trains.
Zheng Li +7 more
wiley +1 more source
Accurate determination of the lithium‐ion diffusion coefficient requires a consistent definition of active surface area. Applying galvanostatic intermittent titration technique and intermittent current interruption to a commercial graphite electrode, we quantify how three common approximations—geometrical area (AGA), scanning electron microscopy ...
Alessandro Gregucci +2 more
wiley +1 more source
Research on Uninterrupted Power Supply Technology for Separate Winding Powered Converter
If the auxiliary converter and train power supply system of electric locomotive and EMU use separate windings for power supply, there is a problem of power interruption during pantograph passing neutral sections.
HU Jingyu +4 more
doaj
The resonant single active bridge topology (R‐SAB) operated in the half‐cycle discontinuous current mode (HC‐DCM) is a very attractive solution due to its high efficiency, low complexity and fixed voltage transfer ratio (DCX).
G. Fortes +3 more
doaj +1 more source
Recent advances in boosting interfacial bubble dynamics with external fields
External physical fields, including acoustic, magnetic, thermal, mechanical, and optical stimuli, accelerate the entire bubble‐dynamics sequence of nucleation, growth, and detachment. Abstract The efficiency of industrial electrocatalytic reactions depends not only on generating gaseous products but also on their detachment from the catalyst surface ...
Wenlu Xie +5 more
wiley +1 more source
Operando ellipsometry enables the real‐time quantification of SEI thickness growth, linking growth modes to electrochemical features. A localized high‐concentration electrolyte exhibits rapid, self‐limiting interphase growth at the FSI‐ reduction potential (1.5 V vs.
Dominik Weintz +7 more
wiley +1 more source
Optimisation Method for Pre-set Arc Suppression Coil Damping Resistors Enhancing Ground Fault Detection [PDF]
As a key component of pre-set arc suppression coil, the damping resistor is currently configured primarily to suppress series resonance overvoltage and prevent protection maloperation during normal operation.
ZHANG Jianbin +4 more
doaj +1 more source

